D/A Converter - Hitachi H8/300L Series Manual

5. D/A Converter

The H8/300L Series on-chip D/A converter uses an R-2R conversion circuit. It can provide up
to four analog voltage output channels.
Features: • Eight-bit resolution
• Four analog voltage output channels
• Conversion time: 3 µs minimum
Block Diagram
Analog output
DA0
DA1
DA2
DA3
Analog system power
supply voltage
AV
CC
AV
SS
<Notation>
DACR0: D/A control register 0
DADR0: D/A data register 0
DADR1: D/A data register 1
DADR2: D/A data register 2
DADR3: D/A data register 3
8-bit D/A converter
R-2R circuit
R-2R circuit
R-2R circuit
R-2R circuit
101
Peripheral Functions
DADR0
DADR1
DADR2
DADR3
DACR0
Control circuit